Airtac SAI63 Standard Cylinder SAI63X135S
The AirTAC SAI63 Standard Cylinder SAI63X135S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 135mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke135 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
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About the Airtac SAI63 Standard Cylinder SAI63X135S
The AirTAC SAI63X135-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 135 mm stroke provides an optimal mid-range extension for positioning medium-weight fixtures and actuators. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that resists operational debris buildup.
Equipped with a magnetic piston (-S), this unit readily integrates with CMSE or DMSE reed switches housed in the dual sensor grooves machined along the barrel. It features a standard carbon steel piston rod and adjustable air cushions at both ends to absorb kinetic energy. For environments requiring elevated thermal resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) alternatives.
Airtac SAI63 Standard Cylinder SAI63X135S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X135S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 135 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63X135S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×135 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI63 Standard Cylinder SAI63X135S Is Used
Fixture Clamping
Secures automotive machining fixtures with 1559 N of push force, utilizing the 135 mm stroke to clear the workpiece during robotic loading and unloading.
Package Diverting
Actuates routing gates on packaging lines, where the magnetic piston enables CMSE sensors to confirm stroke completion for high-speed sorting logic.
Material Ejection
Ejects formed parts from hydraulic presses, relying on the adjustable air cushions to decelerate the load smoothly and protect the carbon steel rod.
Is the Airtac SAI63 Standard Cylinder SAI63X135S the Right Cylinder?
Selecting this 63 mm bore is ideal when a 50 mm bore (982 N at 0.5 MPa) lacks sufficient thrust, but an 80 mm bore (2513 N at 0.5 MPa) would be physically oversized. The 135 mm stroke offers precise movement without the excessive retracted length of longer strokes. Because the stroke is under 300 mm, rod-bearing bending stress is minimal, though external guides should still govern any lateral loads.
As a dimensionally interchangeable ISO 15552 component, it serves as a direct replacement for other standard profile cylinders. Matching mounting accessories include LB foot brackets, FA flanges, or TC trunnion joints, and fluid connections require PT tapered G3/8 ports. If the machinery must maintain vertical position during a complete loss of air pressure, specify the SAIL pneumatic lock variant instead of relying on the standard cushion.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI63 Standard Cylinder SAI63X135S FAQ
At 0.5 MPa operating pressure, this cylinder generates 1559 N of push force and 1402 N of pull force. If pressure increases to 0.7 MPa, the push force rises to 2182 N.
Yes. The SAI63X135-S is dimensionally interchangeable per ISO 15552 standards. You can swap it directly into existing foot, flange, or trunnion mounts designed for equivalent 63 mm profile cylinders.
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